Window frame and wall joint construction



Nov. 14, 1933- SQMADSEN' WINDOW FRAME AND WALL JOINT CONSTRUCTION y M F W w a M a 3 7 w% W. L y m M N f W X m a I Ma a/w! Patented Nov. 14, 1933" 1 anew OFFICE wINoow FRAME AND WALL'JOINT CONSTRUCTION 1 Sem Madsen, Clintom Iowa, assignor to Curtis Companies Incorporated, Clinton, Iowa, a corporation of Iowa Application 0ctober19, 1931; serial No. 569,633 2 Claims. (01. 20+11 An object of my invention is toprovide'a window frame and wall jointj constructionrwhich is simple, effective, durableand comparatively inexpensive to manufacture. I

More particularly; it, is myo'bject to provide simplified means for making a joint between a window frame andla wall construction whichis entirelyleak-pro'of. This is ofteniattempted by" the use of a wide blind: stop or a blind stop ex-c tension which .involves cutting off the) wall sheathing boards at'the center of the studding,

which is'obje'cted to by builders. "Such a joint is not necessarily tight because an extra blind stop nailed to a studdingris not always tight due to warp 'orunevenne'ss in thestuddin'g; If the blind stop is formed of two pieces there'is a possibility of'air leaking through the joint be tween the two'pieces due tof'shrinkage 'ofj th'e wood parts. 7 The usenof a wood blind 'stop' extension also causes or'requires 'several kinds of different frame constructions inorder that the frame may space up correctly in the -wall. Where wood blind stop extension isused in'a brick'wall,

it requireschipping the cornersof one row'of -bricks to build around the stop. Shrinkage.v oi

the blind stops causes an open joint 'f I nisrhererore, one of the mainjob e ts of n 1y invention to provide means for-[connecting and g sealing 'the space. between a frame. 'of'anytype and a wall construction in which theffraine is set {such means consisting of a strip of material having its opposite edges setin a window frame in a 'wallconstr'uc'tion in s'uchfmanner that A all possibilities of an open joint because or" shrinkage or for other reasons is entirely elimi- A further object is. to provide a groove preferably formed by rabbeting the blind stop so that the rabbeted portion 'in conjunction with the outer casing forms the grooveinto which one edge of the strip of material may be snugly inserted. 4

A' further object relatively deep and narrow character so asvto minimize enlarging of it because ofshrinkage ofparts.

: Still a fur-therobject is to provide the strip of material of flexible or bendable character wherel by to take up all unevenness and whereby it can "be'bent to ofiset'positio'n' as maybe required when constructing certain formspf. walls'around the frame.

terialjof such relative thinness that it is adapt- '5 able to occupy permissible space betweenadother than a window frame; and

is tovprovide such groove of joining layers of a wall, such as occupying a position between sheathing and an outer wall covering or between courses of brick or masonry,

,withoutjdeparting from the] usual construction of the wall. 7 V 4 -With'these andother objects in view my invention consists-in, the construction, arrangement and combination of the various parts of mydevice, whereby the objects contemplated are attained, as hereinafter'more fully set forth, 5 pointed out my claims, and illustrated in the accompanying drawing, in which:' v

Figure 1 is an outside elevation of a window frame embodying my,invention.-

Figure 2 isan enlarged sectional view on the line 2-2 of Figure 1, showing a sheathed wall construction with my invention applied thereto.'

Figure 3 is a separated perspective view of V the parts shown in'Figure 2. p t

Figure 4 is an enlarged sectional view on the line 4]4 of Figure 1, showing the construction at the head of'th'e window.

Figure 5 is a sectional view similar to Figure 2, showing my invention used in connection with abrick or masonry'wall. v 7

' Figure 6 is a sectional view similar to Figure 2 showing another type of installation-to illustrate thepurpose' for providing a strip of material which is bendable. r r

Figurev 7 is another sectional view similar to Figure 2 showing theinvention applied to a frame,

Figure 8 is a viewsimilar to Figure fi showinganother way of securing the strip of material to I the frame.

On the accompanying drawing I haveused the reference character A to indicate generally a win-I dow frame and B, a wall construction. Y V I In general; the window frame A has side jambs 10, a head jamb 12, side blind stops 14, a head blind stop 16 andside and head outercasings 18 and 20, respectively. InFigure 2, I have shown thewall construction B as beingof the sheathed typeoin which the studding is indicated at 22 and the sheathing at 24. Building paper is'usually used on'the outside of the sheathing 24.- as indicated at.26. The outers'urface of the wall may be of any construction, such asstucco, brick veneer, or siding 28 as illustratedin Figures 2 and 3;

In order to seal thespace between the sheathing 24 and the side blind stop 14, I form a rabbet 30 male outer face of the blind stop whereby to provide a groove between the rabbeted portion and the inner face of theside casing 18. A strip of material 32 extends into the groove formed by 110 therabbet and fits snugly therein so asto prevent infiltration of air and weather between the casing 18, the strip 32 and the blind stop 14. The

masonry wall with the same effectiveness.

outer edge of the strip 32 is adapted to be imbedded in the wall construction B, preferably lapping over the building paper 26 where such is used. Y

In Figure 3, I have shown the parts separated with arrows at indicating the movements .of the parts to assume assembled position. This is just in order to illustrate how the parts coact with each other. Y r

The strip of material 32 may be formed of building paper, metal or any desired composition, it being preferably thin and flexible or bendable.

It is flexible so that it can confcrmto any "irreg-" ularities in the sheathing 24 or in any surface with which it coacts in the. wall construction so.

as to avoid any possibility of air or weather passing between the strip and the portion of the wall construction with which it engages. r

In Figure '5, I have shown a wall construction B composed of bricks 34 and the strip of material 32 is fitted between'thecourses of the brick. The strip 32 of course can be used with any type of In Figure l, I'have shown the head blind stop .16,as having a rabbet 30a for a strip 32a to extend into. The strip 32a, it will be noted, laps over the building'paper 26a inpthe same'manner as shown" in Figure 2. When building the wall aroundQthe frame'if the frame must beset farther out or in, the strip 32 can be bent asfdesired to accommodate such adjustment.

The strip of material 32"preferably extends down past the sill 11 as shown in Figure 1. 7 The sill is provided with a notch 13 to accommodate such extension. The' :notch 13 is shown dotted in Figures 2 and 5. After the .two side strips '32 are placed in position relative to the window 1 frame A the head strip 32a may be considered to tention' of my meaning is that the sheet of material 32 isof a thickness adaptable to occupy permissible space between sheathing and outer wall covering without changing the usual wall construction-and such thickness of course must be considerably thinner than sheathing which is' the usual'thickness of an extension blind stop. It is quitedesirable that the sheet .of material 32 should be thingenoughso that it is insertable in the space permissible between adjoining layers 7 of brickor masonry walls without departing from the usual construction of such walls.

The joint is economical and eflicient and yet is very simple and easy to install .in any type of wall construction. The groove formedby the rabi bet 30 is positioned 'at'a point not subjectto bad located at any other desirable point or between other-elements" of the window frame, such as between theside jamb and the blind stop for instance.

In. Figure figI have shown why it is desirable to have the strip 32 of flexible or bendable material. In the wall construction B shown in Figure 6 sheathing is indicated at 36 with a furring strip 38 secured thereto for mounting wood or metal lath or the like 40 against which either a stucco or brick veneer outer wall covering 42 is applied. In this type of construction it will be noted that the sheathing 36 is considerably offset from .the blind stop 14 instead of in alignment therewith as shown in Figure 2. The strip 32 extends over the member 38 and may be secured to the sheathing :36 by a lath strip 44 or the like. The lath 40 laps over the strip 32 and it will be evident that since the strip is flexible it may be bent to contact with and be secured to any offset portion of the wall construction. The strip 32 will thus also lap and form a tight joint with the building paper 26 usually applied on the sheathing 36.

The use of the strip 32 need not be restricted to window frames only but may be used for door and other frames. The groove .to receive the strip need not be in exact position shown but may for instance be formed in the outer casing. I have illustrated this construction in Figure "7 in which a door jamb 46, is shown having an outer casing 48. A groove is formed'in the side of the casing 48'next'to the wall construe tion B and the edge of the strip32 extends into the groove 50. Although this is a departure in arrangement'from the arrangement of Figure '2, the strip 32 nevertheless forms an effectiveair and weather sealbe'tween the wall constructionB and the frame parts ,46 and 48.

The joint'between the strip 32, the blindlstop' l4 and the casing 18 when once tightened willv normally remain tight and when the, outer edge" of the stripiis imbedded mortar if there is any: shrinkage at all in the thicknessof the strip it will be very slight because it would be in proportion to the thicknessof, the strip and the strip is relatively 'thin.

Another advantage in using a thin strip for closing the joint is that 'it occupies :but very little. space anddoes not require special, 'more'ex pensive 'wall construction for'its use. It is adapt-1 able because .of its thin construction to work into spaces left between ordinary materials of"*construction, such as between the buildingpaper 26 and the siding 28, as shown in Figure2.

In practicing the-invention, therabbets' 30 and 30a'maybe cut'in the window-frame at the face tory and the strip 32 is always available on'the; job in the form of building paper where the frameis being installed. Strips of metaLroo'fing felt or tear resistingsheet material may also :be used as desired.

The groove to receive the strip of material, 32 need. not be confined inlocation "to the space between the casing-and blind stop as illustrated.

' In Figure '8, I have shown a construction inwhich the strip 32 may be overlappedwith the jamb 18 or any part of the frame and a tightjoint may be made therewith by *means'of a strip5'l and nails orthelike 52. I'have shownfthe strip32 as contacting along two sides of the'strip '5l,butitis' obvious that it can contact with only one :side thereof and the strip 51 need not necessarily be quarter round as "illustrated; The main'requisite. is that an attaching strip should be provided 'between which and the window frame the "strip 32'may be tightly'secured in a weatherproofmanner. It is, therefore, obvious that agroove 'does not "need necessarily to :be "provided for'thestrip 32;but other means as I have illustrated can ran be used to fasten the strip 32to the frame for the desired purpose of providing an effective joint between the frame and the'wall construction.

Other changes may be made in the construction and arrangement of the parts of my device without departing from the real spirit and purpose of my invention and it is my intention to cover by my claims, any modified forms of structure or use of mechanical equivalents, which may be reasonably included within their scope.

I claim as my invention:

1. In a window frame and wall joint construction, a window frame having a sill, head and side jambs, head and side blind stops and head and side casings, said blind stops extending slightly outward from the outer face of said jambs and being rabbeted adjacent said casings, the ends of said sill extending beyond said side jambs and each end having a vertical slot cut therethrough inalignmentwith the rabbets'of said side blind stops, fiat strips of thin, bendable material cut from regular stock material received in the grooves formed by said rabbets between said blind stops and said casings, the upper ends of the strips along the side casings overlapping the ends of the strip along the head casing to provide a continuous joint around three sides of said window frame, the outer edges of said strips being mterposedbetween layers of an adjacent wall construction and the lower ends of the strips along the side casing extending through the slots of said sill and past the lower surface of said sill,

.2. In awindow frame and wall joint construction, a window frame having a sill, head and side jambs, head and side blind stops and head and side casings, saidblind stops and casings having outwardly opening grooves formed between them, the ends of said sill extending beyond said side jambs and each end having a vertical slot cut therethrough in alignment with the grooves ,between said side casings and said side blind stops, fiat strips of thin, bendable material cut from regular stock material received in the grooves formed between said casings and said blind stops, the upper ends of the strips along the side casing overlapping the ends of the strip along the head casing to provide a continuous joint around three sides of said window frame, the outer edges of said strips being interposed between layers of an adjacent wall construction and the lower endsof the strips along the side casings extending through the slots of said sill and past thelower surface of said sill.

SERN MADSEN. 

